kVA to Amps Formula [Single, Two, Three Phase]
kVA to amps formula is used to convert kilovolt amps in single, two, and threephase AC circuits.
kVA or kilovoltampere is defined as the amount of volt times current which is begin fed to the load. The term is often associated with the alternating current (ac) circuits and has no role in dc circuits. kVA is the apparent power which is supplied to the load. Three formulas to calculate kVA from current can be used for doing calculations of kVA’s from amps.
Formulas to calculate amps from kVA  

Single phase kVA to amps  Amps =
kVA * 1000
/
E

Two phase kVA to amps  Amps =
kVA * 1000
/
E * 2

Three phase kVA to amps  Amps =
kW * 1000
/
E * 1.73

Single phase kVA to Amps
It is the ratio of thousand times kVA to the voltage at any system.
Example 1: A 2 kV AC Power supply supplies power to the load whose apparent power rating is 200 kVA. Find the current.
Solution: I = [200 * 1000] / 2000 = 100 Amps
Twophase kVA to Amps
It is the ratio of thousand times kVA to 2 times voltage (due to twophase).
Example 2: A 5 kV power system has the apparent power ratings of 300 kVA. Find the amperes that are passing through it.
Solution: I = [300 * 1000] / 2 * 5000 = 30 Amps
Three Phase kVA to Amps
It is the ratio of thousand times kVA to 1.73 times of system voltages. The number 1.73 is an approximation for √3. Where √3 = 1.732
Example 3: The kVA of an 18 kV circuit is 500. Find the current flowing through it.
Solution: I = [500 * 1000] / 1.73 * 18,000 = 160 Amps